<%@ page language="java" contentType="text/html; charset=UTF-8"
         pageEncoding="UTF-8" isELIgnored="false" %>
<%-- isELIgnored="false"  让EL表达式有效--%>
<html>
<head>
    <meta charset="utf-8"/>
    <title>Title</title>
</head>
<body>
<h2>
    <%=request.getAttribute("msg")%>
    ${requestScope.msg}
</h2>
</body>
</html>
